Train-stopping device.



E. UN VBRRIGHT. TRAIN' STOPPING DEVIGB. APPLIOATION FILIVID JULY 11, 1911.

Patented AugQz?, 1912.

EDUARD UNVERRlfCI-IT, F HAMBURG, GEMANY.

TRAIN-STOPPING DEVICE.

mamas.

Specification. of Letters Patent.

` Patented aug. et, 191.2.

`Application filed .uly 11, 1911. `.Serial No. 637,880.

To eli @from t in ag/ concern Be it known that, Enuann UnvERRroi-rr, a citizen of the'State and free city ot Hamburg, Germany, and residing at Hamburg. Germany, have invented a new and useful Train-Stopping Device, .of` which the following is a specificati'oini1HE This invention relates to railway. safety devices, more particularly oi"V ldiet class in which a plurality of trips or train stops is provided .along the track, said trips dividing the track into a corresponding number of vsafety vbones. Each trip is adapted to either occupy a "dangeW lposition or clear track iositton. When in a dancer ositi-on, the trip is projected into the path .ofr

certain devicesA projecting from the train or cars, which devices when engaged by the trip, will automatically apply the brakes to bring the train to an immediate standstill and tnereby prevent a collision Awith another train or car. The several trips are so interrelated that a trip can only be raised into its clear track position if the neighboring trip is in its danger position, so as to effectively prevent collisions. For this Lpurpose, connecting electric circuits are provided Which control the trip locks,v the cir cuit for each of such locks being closed by the lowered neighboring trip. in order to render my system protective even if such a neighboring trip should be damaged by an accident or otherwise, an electric conductor is carried along each trip that formsppart of the circuit to be closed. This conductor is preferably made of brittle or otherwise readily disintegrable material, so that a breakage of the trip will unfailably cause an interruption of the conductor and a circuit cannot be closed Jt'or unlocking the neig".boring trip.

1n the accompanying drawing: Figure 1 is a iront elevation of my improved train stopping device and of part of a coperating car; Fig. 2 an enlarged elevation partly in section of the train stop proper.l and Fig. 3 a wiring diagram.

The numeral 10 indicates a train stop or trip pivoted at 11 to a suitable plate 12 which is in turn secured to a semaphore post 13. The semaphore arm 14 is by a suitable link system 15 operatively connected to trip .10, while arod 16 is engaged by suitable means for simultaneously operating said semaphore arm and trip. The latter is adaptedtou be engaged by correspondingly arranged means 17 provided on a train-f or car 1S and controlllng the inbrakev conduit 19 thereof. Thesemeans consist-s preferably of frangible caps which are `broken by striksemaphore signal `set againstfhim.A Along ltrip 11G extends a wire 20 of-brittleqmetalor some other conductor adaptedtopbe inter- `rupted upon a breakage of thetrip. 4When the latteris in its danger, position (Figs, 1 and2)V the ends of fconductor20 arepln engagement with a pair of Stationen1 Vcontacts 21, 22v while when the trip ius 1aise d,l

conductor 20 is out of engagement.,with,4 said contacts. Trip 10 isuprovided,y withanose 23 adaptedv to begengaged by; a.,lioolt1 or keeper 24 pivoted at 25 to plate 12.: Keeper fing trip 10 if the engineer should overrun a 24 is made of iron and constitutes-the armature of an electromagnet also carriedby plate 12. When thisfelectromagnet is energized, it- Will attract keeper 2d to withdraw it from the nose 23 of trip 10 and thus permit a raising olf the "latter `fromVV theV u'danger position into the clear track posi.- tion. When electromagnet 26 is disenergized, keeper 24 is released and will by gravityengage nose 23, so as to prevent the raising of trip 10.

In Fig. the electric connections between a pair of neighboring tri 's are shown, the

numerals indicating said rips and coperating parts being distingushed by the coefficents 1 and 2 respectively. The contact 211 of trip 101 is by wire 271 connected to the inain 28 extending along the track to be protected. Contact 221 is by wire 29 connected to the electromagnet 2G2 of the neighboring semaphore. Electromagnet 262 is ip turn by wires 302. 32z connected to theiiiain 33, the mains 28, 33 receivingcurrent from a suitable source of electricity 34. Between the wires 302, 322 are interpolated suitable circuit closing means which are illustrated by a conventional circuit closer 3121.0 Assuming trip 101 to be lowered into the danger position, and a train to approach trip 10 in the direction of arrow a, thc circuit closing means 31 are actuated, thereby c tablishing a circuit., the current of which flows from main 28 through wire 271. contact 211. conductor 201, and contact 22 of trip 101, thence through wire Q9 to the electroningnet 202 of the neighboring trip 101'. and finally through wire 302, circuit closing means 312 and. wire 32g to main 33. ln this way, electromagnet 262 is energized to at- 

